Sucker-rod rotator



March 4, 1930. c. sTEvl-:Ns

' SUGKER ROD RoTAToR Filed July 12,' 1929 2 Sheets-Sheet l (gyda 525206728 INVENTOR ATTORNEY mig-24 March 4, 1930. 'c. sTEvENs SUGKER ROD ROTATOR Filed July 12, 1929 2 Sheets-sheet 2 T, a, e `Ju Patented Mar. 4, 1930 UNITED STATES CLYDE STEVENS, OF CGTTON VALLEY, LOUISIANA SUCKER-ROD ROTATOR Application filed July 12,

This invention relates to a sucker rod rotator, the general object of the invention being to provide means for giving the rods a continuous rotary movement in one direction by the up and down strokes of the beam, the rods rotating inside the oil well tubing.

Another object of the invention is to practically eliminate loosening of the sucker rod joints, the cutting of valve cups and working barrels, and to make the wear on same uniform and to prevent, to a degree, sanding up of rods and valves.

This invention also consists in certain other features of construction and in the combination and arrangement of the several parts, to be hereinafter fully described, il-

lustrated in the accompanying drawings and specifically pointed out in the appended claims.

In describing the invention in detail, reference will be had to the accompanying drawings wherein like characters denote like or corresponding parts throughout the several views, and in which Figure 1 is an elevation of the invention, one of the cover plates of the slots being removed.

Figure 2 is a longitudinal sectional view through Figure 1.

Figure 3 is a similar view, but showing the interior parts in elevation.

Figure 4 is an enlarged sectional view through the lower part of the device.

Figure 5 is a section on line 5-5 of Fig- 35 ure 11.

Figure 6 is a face View of the lower toothed collar of the lower set of collars.

Figure 7 is a face View of the upper collar of said set.

Figures 8 and 9 are detail views showing one of the rolls and its supporting member.

In these views, the numeral 1 indicates a head which is adapted to be connected with a hanger of a walking beam, this head being 45 threaded to the upper end of a barrel 2, the

lower end of which is connected by a coupling 3 with a barrel 4. Each barrel is formed with a pair of diagonally arranged slots 5, the slots of each pair being oppositely ar'- 50 ranged and each barrel is reinforced around 1929. Serial No. 377,854.

the slots, as shown at 6. A plate 7 covers each slot, the plate being suitably fastened to the reinforced part and having a gasket to torni a tight joint with the barrel.

A piston forming tube 8 is arranged in the barrels and passes through the coupling 3, the lower end of the tube passing through a packing gland 9 at the lower end of the lower barrel, this end of the tube being connected by a coupling 10 with the sucker rods. A collar 11 is threaded to the end of the tube 8 and a short length of tube 12 has its lower end threaded into said collar, this tube forming a continuation ot the tube 8. The collar 11 is provided with teeth 13 on its upper face and a second collar 14 is loosely arranged on the tube 1Q and has teeth 15 on its lower face for meshing with the teeth 18 of the collar 11. These teeth are cut right hand. A pair of studs 16 is threaded into the collar 14, the studs being oppositely arranged and each stud carries 'a roll 17 which engages the walls of each upper slot 5.

A collar 18 is loosely mounted on the lower part o'f the tube 8 and carries the studs 16 and the rolls 17', the rolls engaging the lower slots 5. A collar 19 is fastened to the tube 8 above the collar 18 and these two collars have intermeshing teeth which are cut left hand. A coil spring 2O rests upon the antifriction bearings 21 engaging the top of the coupling 3 and has its upper end engaging the collar 11 and a lighter coil spring 22 rests upon a part of the gland 9 and has its upper end engaging the collar 18.

From the foregoing it will be seen that on the up stroke of the beam, the weight of the rods and the fluid will come against the spring 20 so that the same will be contracted and the pressure exerted by this spring will cause the teeth of the lower collars 18 and 19 to mesh and also cause the collar 18 to pass downwardly as its rolls pass through the lower slots 5. Thus the tube 8 and the rods connected therewith will be rotated to the right. On the downward stroke of the beam, the weight of the rods and the fluid is taken oit the spring 20, which recoils and thereby causes the teeth of collars 11 and 14 to mesh and the rolls of collar 14; to move upwardly in the upper slots 5, thus again rotating the tube 8 and the rods to the right. rI`hus the tube 8 and the rods are rotated in the same direction by the up and down movement of the beam.

The small spring 22 carries the weight of the lower collar on the up stroke of the beam. The tube 12 acts as an oil gauge, as it keeps the oil in the device from reaching a high level. The tubes l2 and 8 are de signed so that the rods will pass through them.

It is thought from the foregoing description that the advantages and novel features of the invention will be readily apparent.

'It is to be understood that changes may be made in the construction and in the com bination and arrangement of the several, parts, provided that such changes fall within the scope of the appended claims. y

What is claimed is l. In combination with the beam and sucker rods of a well device, means whereby the strokes of the beam will impart a continuous rotary movement in the same direction to the rods, such means comprising a barrel having upper and lower diagonally ,arranged slots therein, a collar having rolls y thereon engaging each slot, a piston member vertically movable in the barrel, means for connectingV the lower end 0f the member to the sucker rods, means for connecting the upper end of the barrel to the beam, a pair of collars fastened to the piston member, one collar of the pair being arranged adjacent a collar of the other pair, said collars having intermeshing teeth thereon, the teeth of the upper pair extending in an opposite direction from the teeth of the lower pair, a spring engaging the upper collar which is fastened to the piston member and resting Y in the barrel whereby on the upward stroke of the beam, the weight of the rods and fluid will contract the spring and cause it to move the lower pair of collars into mesh and to cause the lower collar to move downwardly through the slots, thereby giving the `piston member a turning movement, and on Aupper end of the barrel to the beam, a pair of collars fastened to the piston member, one collar of the pair being arranged adjacent a collar of the other pair, said collars having intermeshing teeth thereon, the teeth of the upper pair extending in an opposite din the lower pair of collars intomesh and tov cause the lower collar to move downwardly through the slots, thereby giving the piston member a turning movement, and on the down stroke the spring will be relieved of the weight of the rods and fluid so that it will move the upper pair of collars into mesh and move the upper collar upwardly through y its slots to again rotate the piston member and the rods and a small spring in the lower part of the barrel for holding the lower collar normally in raised position.

In testimony whereof I afHX my signature.

CLYDE STEVENS.

the down stroke the spring will be relieved f of the weight of the rods and fluid so that it will move the upper pair of collars into mesh and move the upper collar upwardly through its slots to again rotate the piston member and the rods.

2. In combination with the beam and sucker rods of a well device, means whereby the strokes of the beam will impart a continuous rotary movement in the same direction to the rods, such means comprising a barrel having upper and lower diagonally arranged slots therein, a collar having rolls c thereon engaging each slot, a piston member `vertically movable 1n the barrel, means for connecting the .lower end ofthe member to the Vsucker rods, means for connectingthe 

